package com.volcreate.guoqing.no7;

import java.util.HashMap;
import java.util.Scanner;

/**
 * @author zxc
 * @date 2020/9/24
 */
public class Main {
    public static void main(String[] args) {
        HashMap<String, String> map = new HashMap<>();
        map.put("SwpuIot","123456");
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        String[] split = s.split("\\s");
        String s1 = map.get(split[0]);
        if (s1==null){
            System.out.println("NotExist");
        }else {
            if (s1.equals(split[1])){
                System.out.println("Welcome");
            }else {
                System.out.println("Mismatch");
            }
        }

    }
}
